No
Brahms's violin concerto was written by Brahms. The clue is in its name: the 'Brahms' violin concerto.
No, Louise Japha was a fellow-pupil of Eduard Marxsen, with whom Brahms studied with when he was young. She reported a piano sonata that Brahms had played or improvised at the age of 11, but destroyed in later life.
Brahms never married.
Brahms completed four symphonies.
The cast of But for Women... Dr. Brahms. Johannes Brahms - 1997 includes: Matthias Ponnier as Johannes Brahms Friedrich von Thun as Narrator
Brahms was famous for his romantic symphonies
Brahms guitar was created in 1994.
Brahms's Lullaby was created in 1868.
Leah Brahms was created in 1989.
Brahmsian is the proper adjective for Brahms.
Miss Brahms was created in 1972.